如何在Laravel中插入数组中缺少的月份？

use Carbon\Carbon;

// 假设你有一个数组，包含一些月份的数据
$data = [
    '2023-01' => 100,
    '2023-03' => 200,
    '2023-04' => 150,
];

// 定义开始和结束日期
$start = Carbon::parse('2023-01-01');
$end = Carbon::parse('2023-04-30');

// 生成从开始到结束的所有月份
$months = [];
while ($start->lte($end)) {
    $months[$start->format('Y-m')] = null; // 或者你可以设置一个默认值
    $start->addMonth();
}

// 合并原始数据和生成的月份
$result = array_merge($months, $data);

// 打印结果
print_r($result);

use Illuminate\Support\Facades\DB;

// 假设你的表名为 monthly_data
$start = '2023-01';
$end = '2023-04';

DB::table('monthly_data')
    ->insert(
        DB::raw("SELECT DATE_FORMAT(MONTH_START, '%Y-%m') as month, NULL as value
                 FROM (
                     SELECT DATE_ADD('$start', INTERVAL n MONTH) as MONTH_START
                     FROM (
                         SELECT @rownum:=@rownum+1 as n
                         FROM (SELECT 0 UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) r,
                              (SELECT 0 UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) s,
                              (SELECT 0 UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) t
                     ) x
                     WHERE DATE_ADD('$start', INTERVAL n MONTH) <= '$end'
                 ) y")
    );

use Illuminate\Database\Eloquent\Model;

class MonthlyData extends Model
{
    protected $fillable = ['month', 'value'];

    public function getMonthAttribute($value)
    {
        return Carbon::parse($value)->format('Y-m');
    }

    public static function ensureMonths($start, $end)
    {
        $months = self::whereBetween('month', [$start, $end])->pluck('month')->toArray();
        $allMonths = [];
        $current = Carbon::parse($start);
        while ($current->lte(Carbon::parse($end))) {
            $formattedMonth = $current->format('Y-m');
            if (!in_array($formattedMonth, $months)) {
                self::create(['month' => $formattedMonth, 'value' => null]);
            }
            $current->addMonth();
        }
    }
}

// 使用
MonthlyData::ensureMonths('2023-01', '2023-04');